# Critical Thinking/Math

9,810 results, page 12
1. ## calculus

(a) Find the critical points of f(x) = x^(1/3)-x^(1/5) (b) Determine the maximum and minimum values of f on the interval [0; 2] and where they occur.

asked by dana on December 18, 2010
2. ## Calculus Grade 12 University

Determine the critical numbers and find the absolute maximum and minimum values of the function y = 8x^3 + x^4 for x e [-8,2]

asked by Julie on March 23, 2012
3. ## Statistics

If the alpha level is changed from a=.05 to a=.01. a. What happens to the boundaries for the critical region? b. What happens to the probability of a Type I error?

asked by Lyn on December 20, 2013
4. ## Math

I need help please. Find the critical z values. Assume that the normal distribution applies. Right-Tailed test; x=0.03. z=?

asked by Mandi D on February 19, 2013
5. ## english

what are some advantages of being your own editor and looking at your paper with a critical eye? What do you gain from this as a writer? How can your essay benefit from this?

asked by diamond on July 18, 2009
6. ## math

Find the critical numbers of each given function. (a) f(x)=3rt(x^(2)-x (b) g(x)=2sinx+2cos^(2)x, 0

asked by Help!!!! on December 5, 2007
7. ## Calculus

Find the critical numbers of the function on the interval 0 ≤ θ < 2π. Small & large value f(θ) = 2cos(θ) + (sin(θ))^2

asked by Tina on November 26, 2010
8. ## Calculus

List the critical numbers of the following function in increasing order. Enter N in any blank that you don't need to use. f(x) = (6x+6)/(5x^2+5x+5)

asked by Nate on October 28, 2013

given x=2cos(t)+t*sin(t) and y=2sin(t)-t*cost(t), with t:[pi, 2pi] find all critical values. (4 answers)

asked by Mischa on May 20, 2007
10. ## geography

from studying the map what can you conclude was a critical factor in the location and growth of early civilizations

asked by jontrel on November 1, 2018
11. ## Calculus

Find and classify the critical points off(x)=8x^7(3−x)^6 as local maxima and minima. (I really don't know what to after 56x^6(3-x)^6 + 8x^7 * 6(3-x)^5(-1)

asked by Karku on March 31, 2011
12. ## Econ stats

Consider the following data: 23 17 20 29 21 14 19 24 Develop and test a hypothesis to determine if the variance is greater than 4. Use the critical value approach and α = 0.05

asked by Anonymous on February 6, 2018
13. ## logic

What would be the standard form of the following sentence? "The only road to success is hard work" First I had "All roads to success are hard work." Now I'm thinking that that's wrong because "roads" is plural and I'm talking about "THE road." So now I'm

asked by anonymous on December 31, 2008
14. ## Math repost for Andy

math - Andy, Thursday, October 25, 2007 at 7:37pm can you please help me with this math problem? If you can here is the question: Seventy-five years ago, pharmacists weighed medicine on balances like the ones you have been using. The mass pieces were very

asked by Writeacher on October 25, 2007
15. ## Math

I'm in seventh grade and working on this math test based on lines and planes. I'm stuck on this one question and I don't understand what the question is asking me to do. The question is: Identify a segment skew to GH. I am not asking for the answer, I am

asked by DustyRose&lt;3 on January 5, 2017
16. ## math

justin spends 7/9 of his homework time on math and social studies. He spends 4/7 of this time on math. What fraction of the total time does he spend on social studies?

asked by teresa on January 17, 2017
17. ## Math

19. Mr. Green teaches band, choir, and math. This year, he has 57 students that take at least one of his classes. He teaches band to 25 students. There are 48 students who take either band or choir or both. There are 9 students who take both math and choir

asked by Sebby-Chan on May 21, 2014
18. ## math

Posted by Austin on Thursday, November 13, 2008 at 9:19pm. Luis bought eight bags of candy at the store for a total price of \$21.54. He bought some bags of candy that cost \$2.22 each and the rest cost \$3.48 each. How many bags of the \$3.48 candy did Luis

asked by Austin on November 13, 2008
19. ## math

how do you add and subtract and multiply and divide fractions? I searched Google under the key words "fractions add subtract multiply divide" to get these possible sources:

asked by josh on December 14, 2006
20. ## chemistry

A particular brand of toothpaste claims to contain 0.24 wt% sodium fluoride. What mass in grams of fluoride ion would be present in the average amount of toothpaste used to brush one's teeth, about two grams? Now this is a weight percent concentration

asked by frank on May 7, 2015
21. ## Andrew Wyeth, Help!

Okay, I'm writing a two page research report on him/his art. So far I've introduced him, given a short bio, gone into his classification as an artist, described & interpreted "winter" (1946) and "christina's world" (1948) I need two more works to do this

asked by Claire on February 11, 2007
22. ## math

Is this the correct answer? PV=-50,000+180,000/1+r+180,000/1+r squared=250,000 Responses math - bobpursley, Monday, April 6, 2009 at 12:38pm does r have a value? math - anonymous, Monday, April 6, 2009 at 12:48pm oh yes, r=20%

asked by anonymous on April 6, 2009
23. ## math

Use the following missing pieces to complete the runaway math puzzle. 2 6 6 0 1 8 0 5 Rewrite the equations from the runaway math puzzle. 1. __ - __ = ___ + ___ 2. 1 4 - ___ = ___+ 5 3. ___- ____ = ___ + ___ 4. 8 + ___ = 1 5 - 1 figure it out thank you

asked by tyrese on February 25, 2007
24. ## math

every math class at super fun time high school has 31 students and every science class has 18 students. the school offers 4 more math class than sciencs. if the school has 418 students, how many of each class does the school offer.

asked by niko on August 18, 2012
25. ## help!! organic chemistry

Write the mechanism for the reactions of 1) (E)-3-hexene and bromine and 2) (Z)-3-hexene and bromine in dichloromethane. Assign R,S configuration for each of the products and determine whether they are related as enantiomers or identical. I know how to

asked by jenny on February 1, 2009
26. ## unscramble this word!!

i need help unscrambling these words : slebsurs prusto tripcoa harbrub surgpassa bekrechuryl 2nd one- apricot 3rd rhubarb Is there a certain subject? asparagass-4th brussels sprout 1st huckleberry last one CERINOSMOG Okay.. so I am doing a math assignment

asked by Ellyana on January 8, 2007
27. ## mathamatics

can i have a list of times tables And your question is? 1> Googal stands for how many zeros after one? 2> Who invented logarithm for fast calculation? what is the product of 9 & 6? How could I work a problem that is: I have a bacteria that replicates every

asked by jake on August 31, 2005
28. ## Math(about to fail because of this question)

Can someone please help me with this? And show all work for me? I don't understand and I'm about to fail school over this question. Please help. 3y = 2x + 12 I need the X-Intercept for it. Won't setting y = 0 and solve for x get it? Check my thinking. I

asked by Austin on May 25, 2007
29. ## Math

For her birthday, Ruthie got 4 math books and some other books, all different. From these, she chooses 2 math books and one other book to take on vacation. There are 30 different sets of books Ruthie could choose. How many books in all did she get for her

asked by PT on January 22, 2019
30. ## To "rachel" or "jen" or whoever

Please remember these things: 1. This is a homework help website; please put your subject (math, science, English, or ??) in the subject line to make it faster for each teacher to find those questions in his/her areas. An even better subject heading would

asked by Writeacher on June 7, 2007
31. ## math

Lisa is thinking about two positive integers. The larger integer is seven less than twice the smaller integer. The larger integer is also three more than the smaller integer. What is the larger of the two integers that Lisa is thinking about? ~So the

asked by edgard on January 4, 2017
32. ## math

Oregon is about 400 miles from west to east, and 300 miles from north to south. If a map of Oregon is 15 inches tall (from north to south), about how wide is the map? PLEASE HELP AND EXPLAIN IT Set up a proportion: 15/300 (the ratio of inches to miles,

asked by Aj on January 16, 2007
33. ## AP Calculus

For the function y=4-2x^2+1/6x^4 find the following: Domain x and y intercepts Vertical asymptotes Horizontal asymptotes Symmetry F'(x) Critical numbers Increasing f(x) Decreasing f(x) Extrema F"(x) Possible points of inflection Concave up Concave down

asked by Sarah on December 8, 2014
34. ## Great News!!! :) (for teachers!!!)

GOT A 102 ON FACS SPELLING TEST GOT 100 ON FACS TEST GOT A 94 ON MATH TEST GOT 80 ON MATH NTBK QUIZ GOT 100 ON ENG POSTER GOT 87 ON SCI HW GOT A CHECK ON SCI HW/CW GOT A 93 AEVRAGE FOR SS GOT A 87 AVERAHE FOR SCI (for the 2nd quarter 1st quarter i got a 80

asked by Laruen on February 13, 2012
35. ## Physics -- Electromagnetic

A 7.4 Ù ­ square loop, whose dimensions are 4:5 m x 4:5 m, is placed in a uniform 0.093 T magnetic field that is directed perpendicular to the plane of the loop The loop, which is hinged at each vertex, until the separation between points C and D is d =

asked by matt on August 5, 2007
36. ## Statistics

A group of doctors is trying to see if a vaccine causes a certain type of disease. They take individuals with the certain disease and individuals without the disease. They then use research to estimate the relative incidence of the onset of the disease

asked by Melissa on December 3, 2010
37. ## Statistics

What does this statement mean - "Measurements are nearly always of individual differences" And WHAT tools do we have that will allow us to interpret individual measures? My thinking for the first part of the question is something like, the reporting of a

asked by Bulldog on August 11, 2009
38. ## math

A brick wall measuring 3 ft by 11 ft is to be built. The brick measures 4in by 6 in. How many bricks will it take to complete the walkway? math - Ms. Sue, Monday, June 24, 2013 at 2:39pm Are we building a wall or a walkway? math - iris, Monday, June 24,

asked by iris on June 24, 2013
39. ## math check

Find the critical value for the hypothesis test, given the following. (Give your answer correct to two decimal places.) Ha: ó1 > ó2, with n1 = 8, n2 = 10, and á = 0.025 F = 2.6 .

asked by Tracy on June 28, 2013
40. ## Calculus

The function h(x) = x^3+bx+d has a critical point at (2,-4). Determine the constants b and d and find the equation of h(x). I'm very confused and I do not have any idea on what the first step is.

asked by Daniel on January 2, 2015
41. ## statistics

Suppose a chi-squared test has a degree of freedom of 10 and the level of significance is set at 0.05. What is the critical value?

asked by Jareen on August 21, 2011
42. ## statistic check

Find the critical value for the hypothesis test, given the following. (Give your answer correct to two decimal places.) Ha: ó1 > ó2, with n1 = 8, n2 = 10, and á = 0.025 F = 2.60 is what I got.

asked by Tracy on June 29, 2013
43. ## Statistics

Find the critical values x2L and x2R that correspond to the given confidence level and sample size. 99%: n=23

asked by Kasey on June 30, 2014
44. ## Psychology

How can you use an emotional appeal in a meeting with a supervisor who is rude, controlling and constantly critical? What emotions will be appropriate and which ones will be inappropriate and why?

asked by anonymous on July 20, 2018
45. ## Statistics

Find the critical value for the hypothesis test, given the following. (Give your answer correct to two decimal places.) Ha: ó1 > ó2, with n1 = 13, n2 = 8, and á = 0.025 F=

asked by Karly on October 29, 2013
46. ## social studies

when north carolina decided to reorganize after the hillsborough convention, what change did they make and why? why were some critical of this decision?

asked by aminah davis on March 16, 2009
47. ## Community Nursing

I need helpl in determining how to complete this paper Neighborhood hospital ED sees critical capacities by By: G. Johnson

asked by Taylor on June 3, 2011
48. ## media

which media source is most critical in setting news agendas? a) the Internet b) tv c) magazines d) radio e) newspaper

asked by tina on March 21, 2012
49. ## math check

Find the critical value for the hypothesis test, given the following. (Give your answer correct to two decimal places.) Ha: ó1 > ó2, with n1 = 8, n2 = 10, and á = 0.025 F = 2.24 is what I got .

asked by Tracy on June 26, 2013
50. ## Cal 3

Find critical points for f(x,y)= x^3+y^3-15x^2-6xy+18y^2+39x+138y I know you first take the partial derivative of x and y, but I am not sure where to go from there.

asked by Erica on December 6, 2016
51. ## help

What action should a leader in the Army take when a soldier leaves a thumb drive in the computer that has critical information?

asked by Anonymous on August 7, 2012
52. ## math

Find the critical value for the hypothesis test, given the following. (Give your answer correct to two decimal places.) Ha: ó1 > ó2, with n1 = 8, n2 = 10, and á = 0.025 F = 2.24 is what I got.

asked by Tracy on June 29, 2013
53. ## math

a crate contains apples, pears, and oranges.There are 184 apples and pears and 248 apples and oranges. there are 3 times as many oranges as pears. how many apples are in the crate? How do I show my work to solve this problem using Singapore math - Math in

54. ## sociology

Which of the following would be the best illustration of the expressive role in U.S. society, as developed by Talcott Parsons and Robert Bales? 1. A newly married woman keeps a spotless apartment and cooks beautiful gourmet meals. 2. On Saturday, Bill does

asked by dean on February 5, 2009
55. ## Math

Suki worked on math problems for 2hours on Monday , 2 hours on Tuesday, 2 hours on wednesday , 2 hours on Thursday , and 2 hours on Friday. How many hours did she study math in all? Answer : 5x2=10 Cashshews, brazil nuts, and peanuts originally grew in

asked by Joji on November 18, 2013
56. ## Marh

If 1/3 of the math team are 7th graders and 1/4 of the math team are boys, how many are 7th grade boys? 1/4 of 1/3 = 1/12

asked by Bev on November 4, 2015
57. ## Math check 4

Find the y-intercepts for the function given by: f(x)= 4/(x+5)-1/(x-4)/2/(x-3)+3/(x+2) Math check - Damon, Sunday, October 12, 2008 at 5:56pm The y axis intercepts are the values of the function when x = 0 4/5 - [(1/-4)] / [(2/-3)] + 3/2 Math check -

asked by shawn on October 12, 2008
58. ## help me for this stupid worksheet

the question is.. why did the ghost decide to haunt city hall? urgh i don't fee like doing it so im hoping someone has the answer :] You might have gotten an answer if you'd told us the source of your question. To which story, poem, play are you referring?

asked by brooke on January 31, 2007
59. ## Math

Macy spent 2hrs on homework she spent 1/4 of time working on math how much time did Macy spend on math homework

asked by Bailee on January 18, 2017
60. ## English

1. He is not our age. 2. He is not of our age. (Does #1 come from #2? Is 'of' omitted in Sentence 1?) 3. Who is a math genius? 4. Hana is. 5. Hana is a math genius. 6. It is Hana. 7. She is Hana. (Which ones are the answers to the question, #3?)

asked by rfvv on March 8, 2010
61. ## Sam

only 2/9 the university students wanted to become math teachers. if 2800 didn't want to become math teachers how many university students were there? So, 2/9 * WN = 2800? How would you work it out?

asked by Math on May 6, 2014
62. ## statistics

Find the indicated binomial probabilities. Round to the nearest 3 decimal places. In a local college, 20% of the math majors are women. Ten math majors are chosen at random. 1) What is the probability that exactly 2 are women? 2) What is the probability

63. ## Physics IMP

A large heavy box has its center of mass at a distance l from a bottom corner and at an altitude h above the ground. At what critical angle alpha does the box start to fall over when it is tilted? Assume that the bottom corner of the box has a large

asked by Rosa on November 25, 2013
64. ## literature

Trace and explain in your own words the literary periods We will be happy to critique your work or thinking, but we do not do the work for you. Do you have a question about this assignment? We will be happy to critique your work or thinking, but we do not

asked by Eunice on July 9, 2007
65. ## Red House Primary School

Sally is thinking of a ratio.the simplest form of the ratio is 2:3.if she subtracts 1 from the first number in her ratio and adds 2 to the second number of her ratio,the simples form of new ratio is 1:2.Find the ratio that Sally is thinking of

asked by Khanya on August 25, 2015
66. ## project mgmt

A project has an expected duration of 34 weeks with a critical path variance of 6. Suppose the project network is given and the critical path is identified on the network. Suppose the normal time, crash time, and the associated cost for each activity is

asked by kathy on April 22, 2012
67. ## Chemistry

Solid copper oxide reacts with ammonia gas according to the following equation: 3CuO + 2NH3 -> 3Cu + N2 + 3H20 50 grams of CuO is placed in an 80L reaction vessel, and the vessel was evacuated. Ammonia gas was then gradually introduced into the vessel,

asked by Nikki on September 30, 2013
68. ## Statistics

Can you please help with this question. The only thing that I have come up thus far is that I am using the z critical value because I am estimating a population proportion. Am I on the right track? An important issue facing Americans is the large number of

asked by Jim on March 25, 2008
69. ## math

A researcher predicts that listening to music while solving math problems will make a particular brain area more active. To test this, a research participant has her brain scanned while listening to music and solving math problems, and the brain area of

asked by Donna on August 15, 2011
70. ## critical and creative thinking

Suppose you live in a new suburban community. It offers all the amenities and benefits of a tight-knit small community, with the benefits of living close to the big city. Some years pass, and several children and adults in the community start developing

asked by meme on January 28, 2012
71. ## Math

First student bought art, math and history books for \$72. a+m+h=72 Second student bought art, chemistry and history books for \$80. a+c+h=80 Third student bought chemistry, math and history books for \$61. c+m+h=61 Fourth student bought art, math and

asked by Jen on September 21, 2017
72. ## Calculus

For the following function, find the relative max's or min's using any method. I'm having a hard time finding the critical points...

asked by Isabella on January 10, 2016
73. ## Calculus

Find the critical numbers of the function f(x)=2sinx+x that lie in the interval (0,2pi)? I have the answers, but not sure how to display the work.

asked by Jace on July 11, 2016
74. ## physics(optics)

The critical angle between an equilateral prism and air is 45 degrees.if the incident ray is perpendicular to the refracting surface,then what happens?

asked by Timothy on December 30, 2015

Given y = 4x3 − 48x2 + 5. (a) Find the critical values of the function. (Enter your answers as a comma-separated list

asked by Anonymous on November 4, 2012
76. ## statistics

In a goodness-of-fit test where the sample size is 200, there are 5 categories, and the significanace level is .05. What is the critical value of x squared?

asked by Amy on June 7, 2010
77. ## Life orientation

Critical ways in wich hiv/aids problem impacts on the community and relevant sources to support

asked by David on April 10, 2013
78. ## Calculus

Find any critical numbers of the function f(Ø)= 2secØ +tanØ, 10π < Ø < 12π A. 67π/6 B. 71π/6 C. 63π/6 D. A and B

asked by hhhhh on January 13, 2017
79. ## calculus

find the location and values of any global extrema of F(x)= x^3-3x^2-9x on the interval [-2,4] (you must show your work by finding critical points

asked by angie on December 21, 2016
80. ## Physics

What is the critical angle of light traveling from benzene (n=1.501) into air? 40.05o 48.22o 41.78o 62.63o

asked by John on October 31, 2012
81. ## english

It is not what an author says, but what he or she whispers that is important, what does it mean? what are some short story is connect to this quote that can write a critical lens essay

asked by 000 on October 19, 2010
82. ## calcxulus1

Find the critical points of the function. (Enter your answers as a comma-separated list.) g(x) = square root(81 − x^2)

asked by John on October 23, 2017
83. ## Calculus

Find the interval(s) where the function is increasing where and it is decreasing. f(x)=sin(x+(pi/2)) for 0≤x≤2pi so my derivative is f'(x)=cos(x+(pi/2))? and my critical number is -pi/2?

asked by sh on December 5, 2010
84. ## poetry

Hi I need to do a critical analysis on one thematic aspect of Kenneth Koch's "One train may hide another" and I'm totally clueless. Any ideas?

asked by Zhin on April 21, 2012

What is a good thesis statement on the destruction of world due to food we eat for my critical analysis paper?

asked by Aisha on October 23, 2010

Please remember these things: 1. This is a homework help website; please put your subject (math, science, English, or ??) in the subject line to make it faster for each teacher to find those questions in his/her areas. Even better is if you put your

asked by Writeacher on October 13, 2006
87. ## Comm Tech

1.)Marla remembers her tuesday class schedule by using the acronym Mest . Which of the following might be her class schedule? A.)Math,Social Studies, English,Technology B.)Math,English, Social Studies,Science, Technology C.)Math,English,Social

asked by YRN DJ on December 17, 2015
88. ## math-

bill spent 7 9/10 hours working on is reading and math homework. if he spent 5 3/6 hours on his reading homework, how much time did he spend on his math homework?

asked by Chyna on February 20, 2014
89. ## math

Emily surmises that the probability that she will pass math or chemistry is .95, the probability of her passing math is .7, and the probability of passing both is .55. Find her estimate of the probability of passing chemistry?

asked by Sam on November 22, 2011
90. ## math

Tara spent 3 hours doing homework. She spent 1/3 of her time on math, and 1/5 on science. Estimate the total time she spent on her math and science homework?

asked by Anonymous on November 18, 2012
91. ## math-calculus

30/x^2-25 = 3/x-5-2/x+5 i be left with 30 = 3x^2-75-2x^2+50 i not sure what to do? i use the quadratic formula? math-calculus - Steve, Saturday, January 7, 2012 at 3:38pm First, you have to simplify properly: 30/(x^2-25) = 3/(x-5) - 2/(x+5) 30 = 3(x+5) -

asked by Shreya on January 7, 2012

Two more students like math than science Half the number of students who like science like history. The number of student who like reading equals the number who like math and science combined. Two students like History. How many children (12) like each

asked by Kathy on May 7, 2014
93. ## Psychology

Issue Analysis After reading the selected critical issue, use the following questions to analyze the issue. The work count for individual questions may vary but your responses should total 1,200- to 1,400-words for the entire worksheet. 1. What are some of

asked by Sue B on February 15, 2011
94. ## Math

luc has 1 h of homework to do. He has assignments to complete for social studies and math, and a science test. he sepends 2/5 of the time completing the social studies assignment, and 1/3 of the time on math. How much time does Luc have left to study for

asked by April on October 13, 2014
95. ## Math

8*2sq+7*(4+1)= ? Can someone explain to me what to after the parenthesis? I mean in the PEMDAS of operations says that I should multiply. Multiply what and when? By the way the actual problem is a example I got out of my book. Right at this momen there is

asked by Rindi on August 11, 2007
96. ## debating on rap...

anybody have anything i could say in a debate that's debating on the CON side of "rap music promotes racism" (i'm saying rap DOESN'T promote it)? Try thinking up different sets of search terms and then entering them at http://www.google.com. I tried it

asked by narine on November 16, 2006
97. ## polynomials

lol, i also have these Factor the polynomial x2 + 3x – 18. Which one of the following is a factor? Factor the polynomial 12x2 + 11x – 5 completely. Factor the polynomial 18a2b – 4ab + 10a completely Factor the polynomial 2x2 – 50 completely. Here's

asked by mike on May 15, 2007
98. ## math

calculate the amount a person would earn over a period of time if his or her salary were a penny the first day, two cents the second day, and so on doubling each day. Day Pay =============== 1 0.01000 2 0.02000 3 0.04000 4 0.08000 5 0.16000 Your total pay

asked by Carlson on February 23, 2017
99. ## statistics

Find the indicated binomial probabilities. Round to the nearest 3 decimal places. In a local college, 20% of the math majors are women. Ten math majors are chosen at random. 1) What is the probability that exactly 2 are women? 2) What is the probability